PROBLEM SOLVING: SHOW YOUR SOLUTION (10 PTS) You travel 5 kilometers from church to school, and then 2 kilometers from the school to market. The Journey took 2
hours to complete. Find the following:
a. What is your distance?
b. What is your displacement?
c. What is your average speed?
d. What is your average velocity?

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .

grav potential energy

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.